Question

I need some help please

Answer 1

Answer:
`432<v<478` Blue Light

Explanation:

We have the following inequality with absolute values:

`|v-455|<23`

Which can be rewritten as:

`-23<v-455<23`

Adding 455 to all the expression:

`-23+455<v-455+455<23+455`

`432<v<478` This means the wavelength range of the light is between 432 nm and 478nm, and this corresponds to Blue light.